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6.6.2.2 Offspring

6.6.2.2.1 Purpose

One newborn of a parturition, alive or dead. Twins are two rows; a stillborn calf may never become an animal, while a registered calf links to its animal record.

6.6.2.2.2 Questions it answers

  • How many calves were born at a parturition, and did they survive?
  • Which registered animal came from this birth?

6.6.2.2.3 Fields

Field Type Cardinality Description
id string (uuid) 1..1 Key.
parturition ParturitionEvent 1..1
animal Animal 0..1 The registered animal, when the newborn was registered.
sex AnimalSexEnum 0..1
viability enum 1..1 Values: alive, stillborn, died_after_birth, unknown.
created_at datetime 1..1
updated_at datetime 1..1

6.6.2.2.4 Relationships

References

Referenced by

Uses types

AnimalSexEnum

6.6.2.2.5 Rules & constraints

  • One newborn of a ParturitionEvent. A dead calf may never become an Animal.
  • Twins: two Offspring rows of the same ParturitionEvent.
  • Immutable child payload of an exact event revision; a correction creates new child rows.
  • Registered animal is unique only within that parturition revision, not across feeds or revisions.
  • Animal.birth is a resolved current projection; it does not prohibit multiple birth evidence rows.